In the future I will probably go to EFI but for now holley is my girl.

I said the same thing for a season of AutoX, Road Racing and Drift. Then gave up and went Fuel Injection. Wish I had switched earlier. The only guys I see staying carb on those circuits are the "Nostalgia" classes which have to. Get her running on a carb and start saving for and piecing together a FI system.

Air gap will be a great intake for you. Stronger signal to the carb and higher vacuum for brakes. I used mine (ported) on my 434" SBC with great results. I only recently switched to a ported Hurricane.

My issues were operator error, not the 1.65 rockers. Took one day and the correct rods and plates and she purrs like a kitten. Until you pull her tail.

Here is an interesting read on using larger rockers. In fact many times the larger rockers are easier on the valve train. Don't be scared of 1.6 rockers. They not only increase lift but increase the "effective" duration at 0.050" since they lift the valve quicker. True duration is not changed.

The LS engines have 1.7 rockers for a reason.Smokey Yunick used 1.7 rockers on gen 1 engines in the early 70s.
THe problem with 1.7 ratio rockers is the rocker stud boss is cast and drilled to optimise 1.5:1 rockers.
If you are building a mild gen 1 then use the cam that meets your requirements. To know your requirements,YOU, decide how much power you want,get the heads that work,use the cam and parts that match,the fuel management and exhaust need to match also.

NOTE: 1.6 ratio rockers wont make much difference if you have the correct cam to begin with,,,
Landsharks engine makes a lot more HP so higher ratio rockers are needed.
side note,by the time I convert to F.I. like shark,he will have converted to rocker shafts like me,,,

The LS engines have 1.7 rockers for a reason.Smokey Yunick used 1.7 rockers on gen 1 engines in the early 70s.
THe problem with 1.7 ratio rockers is the rocker stud boss is cast and drilled to optimise 1.5:1 rockers.
If you are building a mild gen 1 then use the cam that meets your requirements. To know your requirements,YOU, decide how much power you want,get the heads that work,use the cam and parts that match,the fuel management and exhaust need to match also.

NOTE: 1.6 ratio rockers wont make much difference if you have the correct cam to begin with,,,
Landsharks engine makes a lot more HP so higher ratio rockers are needed.
side note,by the time I convert to F.I. like shark,he will have converted to rocker shafts like me,,,

I would love shaft rockers! But twin turbos are next for me this spring...

Well for me at this point i just want to get the car running and enjoy it. I personally think i would be very happy if my car had around 350HP; a number i think should be attainable with my current setup. Which would be a hell of a setup for me since the last time i drove the car it had the stock 2.4L straight 6 motor with no rebuilds since 1970 in it making around 120HP or so; a 4 spped transmission and 3.36 rear gears.

I going to go with the cam vinnie suggested and 1.5 rockers for now and see if i like it. If i feel i need more HP i can always modify later. And hopefully this coming winter ill be able to get an EFI system for the car.

Absolutely not! The gasket is irellavent, match the heads and the intake to each other not some damn gasket

How do you match the heads to the intake. Is that not what a gasket match does?

Quote:

Originally Posted by Landshark928

572RWHP @ 6500rpms on a Dynojet NA. 744RWHP with a 200HP shot of N20 running rich. I shift at 7300rpms. Car is about 2800# with me. Will be a little more soon due to roll cage.

Holycrap....thats a lotta power for a car that is only 2800lbs. What size tires are you running? Im running 255/45/17 front and 275/40/17 rear and i think im going to have traction problems with my modest build.

How do you match the heads to the intake. Is that not what a gasket match does?

Assemble the engine, install a small pin through the intake/head mating surface on each corner. dissassemble and use the gasket location to figure out where there is overlap and where there is not- when you're done you should NOT be as large as the gasket. intake to head alignment is all that matters, not the gasket.

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